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Finding the Fourth Proportional to 302,630.40, 453,945.60 and 145,166.40

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Solution

The fourth proportional to 302,630.40, 453,945.60 and 145,166.40 is: 217,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,630.40 : 453,945.60 = 145,166.40 : x
  2. Step 2: Convert to fraction form
    302,630.40/453,945.60 = 145,166.40/x
  3. Step 3: Cross multiply
    302,630.40x = 453,945.60 × 145,166.40
  4. Step 4: Simplify right side
    302,630.40x = 65,897,648,547.84
  5. Step 5: Solve for x
    x = 65,897,648,547.84/302,630.40
  6. Step 6: Final answer
    x = 217,749.60

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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.