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Finding the Fourth Proportional to 304,587, 420,319.53 and 168,626.88

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Solution

The fourth proportional to 304,587, 420,319.53 and 168,626.88 is: 232,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,587 : 420,319.53 = 168,626.88 : x
  2. Step 2: Convert to fraction form
    304,587/420,319.53 = 168,626.88/x
  3. Step 3: Cross multiply
    304,587x = 420,319.53 × 168,626.88
  4. Step 4: Simplify right side
    304,587x = 70,877,170,946.97
  5. Step 5: Solve for x
    x = 70,877,170,946.97/304,587
  6. Step 6: Final answer
    x = 232,699.26

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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.