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Finding the Fourth Proportional to 317,752.98, 438,306.54 and 188,606.34

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Solution

The fourth proportional to 317,752.98, 438,306.54 and 188,606.34 is: 260,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,752.98 : 438,306.54 = 188,606.34 : x
  2. Step 2: Convert to fraction form
    317,752.98/438,306.54 = 188,606.34/x
  3. Step 3: Cross multiply
    317,752.98x = 438,306.54 × 188,606.34
  4. Step 4: Simplify right side
    317,752.98x = 82,667,392,307.46
  5. Step 5: Solve for x
    x = 82,667,392,307.46/317,752.98
  6. Step 6: Final answer
    x = 260,162.45

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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.