Home / 400,118.78-552,156.17-218,830.14

Finding the Fourth Proportional to 400,118.78, 552,156.17 and 218,830.14

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Solution

The fourth proportional to 400,118.78, 552,156.17 and 218,830.14 is: 301,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,118.78 : 552,156.17 = 218,830.14 : x
  2. Step 2: Convert to fraction form
    400,118.78/552,156.17 = 218,830.14/x
  3. Step 3: Cross multiply
    400,118.78x = 552,156.17 × 218,830.14
  4. Step 4: Simplify right side
    400,118.78x = 120,828,410,888.81
  5. Step 5: Solve for x
    x = 120,828,410,888.81/400,118.78
  6. Step 6: Final answer
    x = 301,981.35

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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.