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Finding the Fourth Proportional to 385,557.95, 578,322.52 and 101,245.93

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Solution

The fourth proportional to 385,557.95, 578,322.52 and 101,245.93 is: 151,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,557.95 : 578,322.52 = 101,245.93 : x
  2. Step 2: Convert to fraction form
    385,557.95/578,322.52 = 101,245.93/x
  3. Step 3: Cross multiply
    385,557.95x = 578,322.52 × 101,245.93
  4. Step 4: Simplify right side
    385,557.95x = 58,552,799,678.42
  5. Step 5: Solve for x
    x = 58,552,799,678.42/385,557.95
  6. Step 6: Final answer
    x = 151,865.11

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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.