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Finding the Fourth Proportional to 404,987.08, 558,870.96 and 223,695.76

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Solution

The fourth proportional to 404,987.08, 558,870.96 and 223,695.76 is: 308,693.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,987.08 : 558,870.96 = 223,695.76 : x
  2. Step 2: Convert to fraction form
    404,987.08/558,870.96 = 223,695.76/x
  3. Step 3: Cross multiply
    404,987.08x = 558,870.96 × 223,695.76
  4. Step 4: Simplify right side
    404,987.08x = 125,017,064,139.13
  5. Step 5: Solve for x
    x = 125,017,064,139.13/404,987.08
  6. Step 6: Final answer
    x = 308,693.96

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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.