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Finding the Fourth Proportional to 371,575.83, 512,774.78 and 210,430.92

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Solution

The fourth proportional to 371,575.83, 512,774.78 and 210,430.92 is: 290,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,575.83 : 512,774.78 = 210,430.92 : x
  2. Step 2: Convert to fraction form
    371,575.83/512,774.78 = 210,430.92/x
  3. Step 3: Cross multiply
    371,575.83x = 512,774.78 × 210,430.92
  4. Step 4: Simplify right side
    371,575.83x = 107,903,667,656.04
  5. Step 5: Solve for x
    x = 107,903,667,656.04/371,575.83
  6. Step 6: Final answer
    x = 290,394.74

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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.