Home / 289,985.10-434,977.65-243,329.10

Finding the Fourth Proportional to 289,985.10, 434,977.65 and 243,329.10

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Solution

The fourth proportional to 289,985.10, 434,977.65 and 243,329.10 is: 364,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,985.10 : 434,977.65 = 243,329.10 : x
  2. Step 2: Convert to fraction form
    289,985.10/434,977.65 = 243,329.10/x
  3. Step 3: Cross multiply
    289,985.10x = 434,977.65 × 243,329.10
  4. Step 4: Simplify right side
    289,985.10x = 105,842,720,094.62
  5. Step 5: Solve for x
    x = 105,842,720,094.62/289,985.10
  6. Step 6: Final answer
    x = 364,993.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.