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Finding the Fourth Proportional to 346,680.79, 520,047.33 and 103,502.61

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Solution

The fourth proportional to 346,680.79, 520,047.33 and 103,502.61 is: 155,261.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,680.79 : 520,047.33 = 103,502.61 : x
  2. Step 2: Convert to fraction form
    346,680.79/520,047.33 = 103,502.61/x
  3. Step 3: Cross multiply
    346,680.79x = 520,047.33 × 103,502.61
  4. Step 4: Simplify right side
    346,680.79x = 53,826,255,978.53
  5. Step 5: Solve for x
    x = 53,826,255,978.53/346,680.79
  6. Step 6: Final answer
    x = 155,261.72

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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.