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Finding the Fourth Proportional to 290,280.76, 400,560.06 and 162,931.48

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Solution

The fourth proportional to 290,280.76, 400,560.06 and 162,931.48 is: 224,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,280.76 : 400,560.06 = 162,931.48 : x
  2. Step 2: Convert to fraction form
    290,280.76/400,560.06 = 162,931.48/x
  3. Step 3: Cross multiply
    290,280.76x = 400,560.06 × 162,931.48
  4. Step 4: Simplify right side
    290,280.76x = 65,263,843,404.69
  5. Step 5: Solve for x
    x = 65,263,843,404.69/290,280.76
  6. Step 6: Final answer
    x = 224,830.07

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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.