Home / 210,432.47-315,774.45-77,326.18

Finding the Fourth Proportional to 210,432.47, 315,774.45 and 77,326.18

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Solution

The fourth proportional to 210,432.47, 315,774.45 and 77,326.18 is: 116,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,432.47 : 315,774.45 = 77,326.18 : x
  2. Step 2: Convert to fraction form
    210,432.47/315,774.45 = 77,326.18/x
  3. Step 3: Cross multiply
    210,432.47x = 315,774.45 × 77,326.18
  4. Step 4: Simplify right side
    210,432.47x = 24,417,631,170.66
  5. Step 5: Solve for x
    x = 24,417,631,170.66/210,432.47
  6. Step 6: Final answer
    x = 116,035.48

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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.