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Finding the Fourth Proportional to 436,666.60, 655,300.70 and 152,358.76

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Solution

The fourth proportional to 436,666.60, 655,300.70 and 152,358.76 is: 228,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,666.60 : 655,300.70 = 152,358.76 : x
  2. Step 2: Convert to fraction form
    436,666.60/655,300.70 = 152,358.76/x
  3. Step 3: Cross multiply
    436,666.60x = 655,300.70 × 152,358.76
  4. Step 4: Simplify right side
    436,666.60x = 99,840,802,079.13
  5. Step 5: Solve for x
    x = 99,840,802,079.13/436,666.60
  6. Step 6: Final answer
    x = 228,643.09

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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.