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Finding the Fourth Proportional to 402,626.70, 555,625.98 and 230,547.26

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Solution

The fourth proportional to 402,626.70, 555,625.98 and 230,547.26 is: 318,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,626.70 : 555,625.98 = 230,547.26 : x
  2. Step 2: Convert to fraction form
    402,626.70/555,625.98 = 230,547.26/x
  3. Step 3: Cross multiply
    402,626.70x = 555,625.98 × 230,547.26
  4. Step 4: Simplify right side
    402,626.70x = 128,098,048,662.88
  5. Step 5: Solve for x
    x = 128,098,048,662.88/402,626.70
  6. Step 6: Final answer
    x = 318,155.87

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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.