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Finding the Fourth Proportional to 385,007.60, 577,338.60 and 148,271.60

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Solution

The fourth proportional to 385,007.60, 577,338.60 and 148,271.60 is: 222,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,007.60 : 577,338.60 = 148,271.60 : x
  2. Step 2: Convert to fraction form
    385,007.60/577,338.60 = 148,271.60/x
  3. Step 3: Cross multiply
    385,007.60x = 577,338.60 × 148,271.60
  4. Step 4: Simplify right side
    385,007.60x = 85,602,917,963.76
  5. Step 5: Solve for x
    x = 85,602,917,963.76/385,007.60
  6. Step 6: Final answer
    x = 222,340.85

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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.