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Finding the Fourth Proportional to 385,668.76, 577,506.30 and 266,094.40

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Solution

The fourth proportional to 385,668.76, 577,506.30 and 266,094.40 is: 398,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,668.76 : 577,506.30 = 266,094.40 : x
  2. Step 2: Convert to fraction form
    385,668.76/577,506.30 = 266,094.40/x
  3. Step 3: Cross multiply
    385,668.76x = 577,506.30 × 266,094.40
  4. Step 4: Simplify right side
    385,668.76x = 153,671,192,394.72
  5. Step 5: Solve for x
    x = 153,671,192,394.72/385,668.76
  6. Step 6: Final answer
    x = 398,453.82

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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.