Home / 345,565.17-518,312.70-92,812.82

Finding the Fourth Proportional to 345,565.17, 518,312.70 and 92,812.82

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Solution

The fourth proportional to 345,565.17, 518,312.70 and 92,812.82 is: 139,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,565.17 : 518,312.70 = 92,812.82 : x
  2. Step 2: Convert to fraction form
    345,565.17/518,312.70 = 92,812.82/x
  3. Step 3: Cross multiply
    345,565.17x = 518,312.70 × 92,812.82
  4. Step 4: Simplify right side
    345,565.17x = 48,106,060,737.25
  5. Step 5: Solve for x
    x = 48,106,060,737.25/345,565.17
  6. Step 6: Final answer
    x = 139,209.81

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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.