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Finding the Fourth Proportional to 436,937.60, 655,291.20 and 137,417.60

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Solution

The fourth proportional to 436,937.60, 655,291.20 and 137,417.60 is: 206,090.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,937.60 : 655,291.20 = 137,417.60 : x
  2. Step 2: Convert to fraction form
    436,937.60/655,291.20 = 137,417.60/x
  3. Step 3: Cross multiply
    436,937.60x = 655,291.20 × 137,417.60
  4. Step 4: Simplify right side
    436,937.60x = 90,048,544,005.12
  5. Step 5: Solve for x
    x = 90,048,544,005.12/436,937.60
  6. Step 6: Final answer
    x = 206,090.17

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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.