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Finding the Fourth Proportional to 343,587.61, 515,397.62 and 283,504.65

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Solution

The fourth proportional to 343,587.61, 515,397.62 and 283,504.65 is: 425,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,587.61 : 515,397.62 = 283,504.65 : x
  2. Step 2: Convert to fraction form
    343,587.61/515,397.62 = 283,504.65/x
  3. Step 3: Cross multiply
    343,587.61x = 515,397.62 × 283,504.65
  4. Step 4: Simplify right side
    343,587.61x = 146,117,621,868.93
  5. Step 5: Solve for x
    x = 146,117,621,868.93/343,587.61
  6. Step 6: Final answer
    x = 425,270.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.