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Finding the Fourth Proportional to 401,570.77, 554,162.49 and 229,486.76

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Solution

The fourth proportional to 401,570.77, 554,162.49 and 229,486.76 is: 316,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,570.77 : 554,162.49 = 229,486.76 : x
  2. Step 2: Convert to fraction form
    401,570.77/554,162.49 = 229,486.76/x
  3. Step 3: Cross multiply
    401,570.77x = 554,162.49 × 229,486.76
  4. Step 4: Simplify right side
    401,570.77x = 127,172,956,302.76
  5. Step 5: Solve for x
    x = 127,172,956,302.76/401,570.77
  6. Step 6: Final answer
    x = 316,688.78

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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.