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Finding the Fourth Proportional to 404,705.40, 558,494.27 and 223,417.58

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Solution

The fourth proportional to 404,705.40, 558,494.27 and 223,417.58 is: 308,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,705.40 : 558,494.27 = 223,417.58 : x
  2. Step 2: Convert to fraction form
    404,705.40/558,494.27 = 223,417.58/x
  3. Step 3: Cross multiply
    404,705.40x = 558,494.27 × 223,417.58
  4. Step 4: Simplify right side
    404,705.40x = 124,777,434,337.71
  5. Step 5: Solve for x
    x = 124,777,434,337.71/404,705.40
  6. Step 6: Final answer
    x = 308,316.70

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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.