Home / 306,862.10-423,439.44-170,908.74

Finding the Fourth Proportional to 306,862.10, 423,439.44 and 170,908.74

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Solution

The fourth proportional to 306,862.10, 423,439.44 and 170,908.74 is: 235,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,862.10 : 423,439.44 = 170,908.74 : x
  2. Step 2: Convert to fraction form
    306,862.10/423,439.44 = 170,908.74/x
  3. Step 3: Cross multiply
    306,862.10x = 423,439.44 × 170,908.74
  4. Step 4: Simplify right side
    306,862.10x = 72,369,501,156.71
  5. Step 5: Solve for x
    x = 72,369,501,156.71/306,862.10
  6. Step 6: Final answer
    x = 235,837.21

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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.