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Finding the Fourth Proportional to 304,543.07, 420,264.35 and 168,574.10

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Solution

The fourth proportional to 304,543.07, 420,264.35 and 168,574.10 is: 232,629.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,543.07 : 420,264.35 = 168,574.10 : x
  2. Step 2: Convert to fraction form
    304,543.07/420,264.35 = 168,574.10/x
  3. Step 3: Cross multiply
    304,543.07x = 420,264.35 × 168,574.10
  4. Step 4: Simplify right side
    304,543.07x = 70,845,684,615.28
  5. Step 5: Solve for x
    x = 70,845,684,615.28/304,543.07
  6. Step 6: Final answer
    x = 232,629.44

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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.