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Finding the Fourth Proportional to 386,502.01, 579,746.16 and 158,748.30

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Solution

The fourth proportional to 386,502.01, 579,746.16 and 158,748.30 is: 238,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,502.01 : 579,746.16 = 158,748.30 : x
  2. Step 2: Convert to fraction form
    386,502.01/579,746.16 = 158,748.30/x
  3. Step 3: Cross multiply
    386,502.01x = 579,746.16 × 158,748.30
  4. Step 4: Simplify right side
    386,502.01x = 92,033,717,331.53
  5. Step 5: Solve for x
    x = 92,033,717,331.53/386,502.01
  6. Step 6: Final answer
    x = 238,119.64

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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.