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Finding the Fourth Proportional to 304,681.66, 420,455.53 and 168,712.70

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Solution

The fourth proportional to 304,681.66, 420,455.53 and 168,712.70 is: 232,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,681.66 : 420,455.53 = 168,712.70 : x
  2. Step 2: Convert to fraction form
    304,681.66/420,455.53 = 168,712.70/x
  3. Step 3: Cross multiply
    304,681.66x = 420,455.53 × 168,712.70
  4. Step 4: Simplify right side
    304,681.66x = 70,936,185,172.17
  5. Step 5: Solve for x
    x = 70,936,185,172.17/304,681.66
  6. Step 6: Final answer
    x = 232,820.66

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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.