Home / 282,840.53-390,263.85-158,665.49

Finding the Fourth Proportional to 282,840.53, 390,263.85 and 158,665.49

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Solution

The fourth proportional to 282,840.53, 390,263.85 and 158,665.49 is: 218,926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,840.53 : 390,263.85 = 158,665.49 : x
  2. Step 2: Convert to fraction form
    282,840.53/390,263.85 = 158,665.49/x
  3. Step 3: Cross multiply
    282,840.53x = 390,263.85 × 158,665.49
  4. Step 4: Simplify right side
    282,840.53x = 61,921,404,989.54
  5. Step 5: Solve for x
    x = 61,921,404,989.54/282,840.53
  6. Step 6: Final answer
    x = 218,926.92

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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.