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Finding the Fourth Proportional to 154,491.60, 231,737.40 and 60,985.20

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Solution

The fourth proportional to 154,491.60, 231,737.40 and 60,985.20 is: 91,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,491.60 : 231,737.40 = 60,985.20 : x
  2. Step 2: Convert to fraction form
    154,491.60/231,737.40 = 60,985.20/x
  3. Step 3: Cross multiply
    154,491.60x = 231,737.40 × 60,985.20
  4. Step 4: Simplify right side
    154,491.60x = 14,132,551,686.48
  5. Step 5: Solve for x
    x = 14,132,551,686.48/154,491.60
  6. Step 6: Final answer
    x = 91,477.80

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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.