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Finding the Fourth Proportional to 286,718.04, 395,681.04 and 157,666.38

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Solution

The fourth proportional to 286,718.04, 395,681.04 and 157,666.38 is: 217,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,718.04 : 395,681.04 = 157,666.38 : x
  2. Step 2: Convert to fraction form
    286,718.04/395,681.04 = 157,666.38/x
  3. Step 3: Cross multiply
    286,718.04x = 395,681.04 × 157,666.38
  4. Step 4: Simplify right side
    286,718.04x = 62,385,597,211.44
  5. Step 5: Solve for x
    x = 62,385,597,211.44/286,718.04
  6. Step 6: Final answer
    x = 217,585.18

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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.