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Finding the Fourth Proportional to 356,501.72, 492,196.08 and 229,398.20

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Solution

The fourth proportional to 356,501.72, 492,196.08 and 229,398.20 is: 316,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,501.72 : 492,196.08 = 229,398.20 : x
  2. Step 2: Convert to fraction form
    356,501.72/492,196.08 = 229,398.20/x
  3. Step 3: Cross multiply
    356,501.72x = 492,196.08 × 229,398.20
  4. Step 4: Simplify right side
    356,501.72x = 112,908,894,799.06
  5. Step 5: Solve for x
    x = 112,908,894,799.06/356,501.72
  6. Step 6: Final answer
    x = 316,713.46

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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.