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Finding the Fourth Proportional to 366,931.60, 550,397.40 and 340,359.55

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Solution

The fourth proportional to 366,931.60, 550,397.40 and 340,359.55 is: 510,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,931.60 : 550,397.40 = 340,359.55 : x
  2. Step 2: Convert to fraction form
    366,931.60/550,397.40 = 340,359.55/x
  3. Step 3: Cross multiply
    366,931.60x = 550,397.40 × 340,359.55
  4. Step 4: Simplify right side
    366,931.60x = 187,333,011,385.17
  5. Step 5: Solve for x
    x = 187,333,011,385.17/366,931.60
  6. Step 6: Final answer
    x = 510,539.33

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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.