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Finding the Fourth Proportional to 468,288.54, 646,235.91 and 253,428.30

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Solution

The fourth proportional to 468,288.54, 646,235.91 and 253,428.30 is: 349,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,288.54 : 646,235.91 = 253,428.30 : x
  2. Step 2: Convert to fraction form
    468,288.54/646,235.91 = 253,428.30/x
  3. Step 3: Cross multiply
    468,288.54x = 646,235.91 × 253,428.30
  4. Step 4: Simplify right side
    468,288.54x = 163,774,468,070.25
  5. Step 5: Solve for x
    x = 163,774,468,070.25/468,288.54
  6. Step 6: Final answer
    x = 349,729.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.