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Finding the Fourth Proportional to 384,752.40, 577,128.60 and 243,034.80

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Solution

The fourth proportional to 384,752.40, 577,128.60 and 243,034.80 is: 364,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,752.40 : 577,128.60 = 243,034.80 : x
  2. Step 2: Convert to fraction form
    384,752.40/577,128.60 = 243,034.80/x
  3. Step 3: Cross multiply
    384,752.40x = 577,128.60 × 243,034.80
  4. Step 4: Simplify right side
    384,752.40x = 140,262,333,875.28
  5. Step 5: Solve for x
    x = 140,262,333,875.28/384,752.40
  6. Step 6: Final answer
    x = 364,552.20

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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.