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Finding the Fourth Proportional to 304,385.61, 420,221.07 and 183,557.51

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Solution

The fourth proportional to 304,385.61, 420,221.07 and 183,557.51 is: 253,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,385.61 : 420,221.07 = 183,557.51 : x
  2. Step 2: Convert to fraction form
    304,385.61/420,221.07 = 183,557.51/x
  3. Step 3: Cross multiply
    304,385.61x = 420,221.07 × 183,557.51
  4. Step 4: Simplify right side
    304,385.61x = 77,134,733,258.74
  5. Step 5: Solve for x
    x = 77,134,733,258.74/304,385.61
  6. Step 6: Final answer
    x = 253,411.23

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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.