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Finding the Fourth Proportional to 459,883.60, 690,612.60 and 249,931.60

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Solution

The fourth proportional to 459,883.60, 690,612.60 and 249,931.60 is: 375,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,883.60 : 690,612.60 = 249,931.60 : x
  2. Step 2: Convert to fraction form
    459,883.60/690,612.60 = 249,931.60/x
  3. Step 3: Cross multiply
    459,883.60x = 690,612.60 × 249,931.60
  4. Step 4: Simplify right side
    459,883.60x = 172,605,912,098.16
  5. Step 5: Solve for x
    x = 172,605,912,098.16/459,883.60
  6. Step 6: Final answer
    x = 375,325.22

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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.