Home / 389,298.15-583,590.45-136,440.81

Finding the Fourth Proportional to 389,298.15, 583,590.45 and 136,440.81

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Solution

The fourth proportional to 389,298.15, 583,590.45 and 136,440.81 is: 204,536.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,298.15 : 583,590.45 = 136,440.81 : x
  2. Step 2: Convert to fraction form
    389,298.15/583,590.45 = 136,440.81/x
  3. Step 3: Cross multiply
    389,298.15x = 583,590.45 × 136,440.81
  4. Step 4: Simplify right side
    389,298.15x = 79,625,553,706.26
  5. Step 5: Solve for x
    x = 79,625,553,706.26/389,298.15
  6. Step 6: Final answer
    x = 204,536.17

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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.