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Finding the Fourth Proportional to 290,574.32, 400,830.66 and 270,024.35

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Solution

The fourth proportional to 290,574.32, 400,830.66 and 270,024.35 is: 372,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,574.32 : 400,830.66 = 270,024.35 : x
  2. Step 2: Convert to fraction form
    290,574.32/400,830.66 = 270,024.35/x
  3. Step 3: Cross multiply
    290,574.32x = 400,830.66 × 270,024.35
  4. Step 4: Simplify right side
    290,574.32x = 108,234,038,426.57
  5. Step 5: Solve for x
    x = 108,234,038,426.57/290,574.32
  6. Step 6: Final answer
    x = 372,483.15

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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.