Home / 306,722.10-423,266.13-172,560.18

Finding the Fourth Proportional to 306,722.10, 423,266.13 and 172,560.18

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Solution

The fourth proportional to 306,722.10, 423,266.13 and 172,560.18 is: 238,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,722.10 : 423,266.13 = 172,560.18 : x
  2. Step 2: Convert to fraction form
    306,722.10/423,266.13 = 172,560.18/x
  3. Step 3: Cross multiply
    306,722.10x = 423,266.13 × 172,560.18
  4. Step 4: Simplify right side
    306,722.10x = 73,038,879,580.70
  5. Step 5: Solve for x
    x = 73,038,879,580.70/306,722.10
  6. Step 6: Final answer
    x = 238,127.22

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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.