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Finding the Fourth Proportional to 372,502.15, 514,316.59 and 290,922.32

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Solution

The fourth proportional to 372,502.15, 514,316.59 and 290,922.32 is: 401,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,502.15 : 514,316.59 = 290,922.32 : x
  2. Step 2: Convert to fraction form
    372,502.15/514,316.59 = 290,922.32/x
  3. Step 3: Cross multiply
    372,502.15x = 514,316.59 × 290,922.32
  4. Step 4: Simplify right side
    372,502.15x = 149,626,176,135.77
  5. Step 5: Solve for x
    x = 149,626,176,135.77/372,502.15
  6. Step 6: Final answer
    x = 401,678.69

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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.