Home / 384,775.14-530,988.33-215,009.22

Finding the Fourth Proportional to 384,775.14, 530,988.33 and 215,009.22

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Solution

The fourth proportional to 384,775.14, 530,988.33 and 215,009.22 is: 296,711.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,775.14 : 530,988.33 = 215,009.22 : x
  2. Step 2: Convert to fraction form
    384,775.14/530,988.33 = 215,009.22/x
  3. Step 3: Cross multiply
    384,775.14x = 530,988.33 × 215,009.22
  4. Step 4: Simplify right side
    384,775.14x = 114,167,386,662.40
  5. Step 5: Solve for x
    x = 114,167,386,662.40/384,775.14
  6. Step 6: Final answer
    x = 296,711.96

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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.