Home / 210,377.28-315,565.86-52,605.72

Finding the Fourth Proportional to 210,377.28, 315,565.86 and 52,605.72

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Solution

The fourth proportional to 210,377.28, 315,565.86 and 52,605.72 is: 78,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,377.28 : 315,565.86 = 52,605.72 : x
  2. Step 2: Convert to fraction form
    210,377.28/315,565.86 = 52,605.72/x
  3. Step 3: Cross multiply
    210,377.28x = 315,565.86 × 52,605.72
  4. Step 4: Simplify right side
    210,377.28x = 16,600,569,272.72
  5. Step 5: Solve for x
    x = 16,600,569,272.72/210,377.28
  6. Step 6: Final answer
    x = 78,908.56

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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.