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Finding the Fourth Proportional to 355,318.40, 532,394.40 and 302,830.40

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Solution

The fourth proportional to 355,318.40, 532,394.40 and 302,830.40 is: 453,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,318.40 : 532,394.40 = 302,830.40 : x
  2. Step 2: Convert to fraction form
    355,318.40/532,394.40 = 302,830.40/x
  3. Step 3: Cross multiply
    355,318.40x = 532,394.40 × 302,830.40
  4. Step 4: Simplify right side
    355,318.40x = 161,225,209,109.76
  5. Step 5: Solve for x
    x = 161,225,209,109.76/355,318.40
  6. Step 6: Final answer
    x = 453,748.55

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1.5x scale

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.