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Finding the Fourth Proportional to 286,678.55, 395,582.02 and 157,595.74

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Solution

The fourth proportional to 286,678.55, 395,582.02 and 157,595.74 is: 217,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,678.55 : 395,582.02 = 157,595.74 : x
  2. Step 2: Convert to fraction form
    286,678.55/395,582.02 = 157,595.74/x
  3. Step 3: Cross multiply
    286,678.55x = 395,582.02 × 157,595.74
  4. Step 4: Simplify right side
    286,678.55x = 62,342,041,172.59
  5. Step 5: Solve for x
    x = 62,342,041,172.59/286,678.55
  6. Step 6: Final answer
    x = 217,463.22

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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.