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Finding the Fourth Proportional to 402,210.27, 555,025.64 and 220,886.91

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Solution

The fourth proportional to 402,210.27, 555,025.64 and 220,886.91 is: 304,810.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,210.27 : 555,025.64 = 220,886.91 : x
  2. Step 2: Convert to fraction form
    402,210.27/555,025.64 = 220,886.91/x
  3. Step 3: Cross multiply
    402,210.27x = 555,025.64 × 220,886.91
  4. Step 4: Simplify right side
    402,210.27x = 122,597,897,485.94
  5. Step 5: Solve for x
    x = 122,597,897,485.94/402,210.27
  6. Step 6: Final answer
    x = 304,810.46

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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.