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Finding the Fourth Proportional to 243,169.02, 335,514.15 and 142,547.58

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Solution

The fourth proportional to 243,169.02, 335,514.15 and 142,547.58 is: 196,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,169.02 : 335,514.15 = 142,547.58 : x
  2. Step 2: Convert to fraction form
    243,169.02/335,514.15 = 142,547.58/x
  3. Step 3: Cross multiply
    243,169.02x = 335,514.15 × 142,547.58
  4. Step 4: Simplify right side
    243,169.02x = 47,826,730,138.26
  5. Step 5: Solve for x
    x = 47,826,730,138.26/243,169.02
  6. Step 6: Final answer
    x = 196,681.02

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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.