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Finding the Fourth Proportional to 352,856.40, 528,701.40 and 302,701.20

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Solution

The fourth proportional to 352,856.40, 528,701.40 and 302,701.20 is: 453,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,856.40 : 528,701.40 = 302,701.20 : x
  2. Step 2: Convert to fraction form
    352,856.40/528,701.40 = 302,701.20/x
  3. Step 3: Cross multiply
    352,856.40x = 528,701.40 × 302,701.20
  4. Step 4: Simplify right side
    352,856.40x = 160,038,548,221.68
  5. Step 5: Solve for x
    x = 160,038,548,221.68/352,856.40
  6. Step 6: Final answer
    x = 453,551.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.