Home / 306,657.35-423,187.08-170,688.38

Finding the Fourth Proportional to 306,657.35, 423,187.08 and 170,688.38

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Solution

The fourth proportional to 306,657.35, 423,187.08 and 170,688.38 is: 235,549.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,657.35 : 423,187.08 = 170,688.38 : x
  2. Step 2: Convert to fraction form
    306,657.35/423,187.08 = 170,688.38/x
  3. Step 3: Cross multiply
    306,657.35x = 423,187.08 × 170,688.38
  4. Step 4: Simplify right side
    306,657.35x = 72,233,115,006.20
  5. Step 5: Solve for x
    x = 72,233,115,006.20/306,657.35
  6. Step 6: Final answer
    x = 235,549.93

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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.