Home / 385,536.42-578,470.03-149,045.18

Finding the Fourth Proportional to 385,536.42, 578,470.03 and 149,045.18

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Solution

The fourth proportional to 385,536.42, 578,470.03 and 149,045.18 is: 223,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,536.42 : 578,470.03 = 149,045.18 : x
  2. Step 2: Convert to fraction form
    385,536.42/578,470.03 = 149,045.18/x
  3. Step 3: Cross multiply
    385,536.42x = 578,470.03 × 149,045.18
  4. Step 4: Simplify right side
    385,536.42x = 86,218,166,853.61
  5. Step 5: Solve for x
    x = 86,218,166,853.61/385,536.42
  6. Step 6: Final answer
    x = 223,631.70

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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.