Home / 289,625.10-434,437.65-102,612.30

Finding the Fourth Proportional to 289,625.10, 434,437.65 and 102,612.30

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Solution

The fourth proportional to 289,625.10, 434,437.65 and 102,612.30 is: 153,918.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,625.10 : 434,437.65 = 102,612.30 : x
  2. Step 2: Convert to fraction form
    289,625.10/434,437.65 = 102,612.30/x
  3. Step 3: Cross multiply
    289,625.10x = 434,437.65 × 102,612.30
  4. Step 4: Simplify right side
    289,625.10x = 44,578,646,473.10
  5. Step 5: Solve for x
    x = 44,578,646,473.10/289,625.10
  6. Step 6: Final answer
    x = 153,918.45

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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.