Home / 307,088.20-423,776.10-172,952.20

Finding the Fourth Proportional to 307,088.20, 423,776.10 and 172,952.20

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Solution

The fourth proportional to 307,088.20, 423,776.10 and 172,952.20 is: 238,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,088.20 : 423,776.10 = 172,952.20 : x
  2. Step 2: Convert to fraction form
    307,088.20/423,776.10 = 172,952.20/x
  3. Step 3: Cross multiply
    307,088.20x = 423,776.10 × 172,952.20
  4. Step 4: Simplify right side
    307,088.20x = 73,293,008,802.42
  5. Step 5: Solve for x
    x = 73,293,008,802.42/307,088.20
  6. Step 6: Final answer
    x = 238,670.87

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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.