Home / 289,025.90-434,575.65-243,406.70

Finding the Fourth Proportional to 289,025.90, 434,575.65 and 243,406.70

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Solution

The fourth proportional to 289,025.90, 434,575.65 and 243,406.70 is: 365,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,025.90 : 434,575.65 = 243,406.70 : x
  2. Step 2: Convert to fraction form
    289,025.90/434,575.65 = 243,406.70/x
  3. Step 3: Cross multiply
    289,025.90x = 434,575.65 × 243,406.70
  4. Step 4: Simplify right side
    289,025.90x = 105,778,624,866.86
  5. Step 5: Solve for x
    x = 105,778,624,866.86/289,025.90
  6. Step 6: Final answer
    x = 365,983.20

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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.