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Finding the Fourth Proportional to 369,219.40, 553,800.30 and 144,536.20

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Solution

The fourth proportional to 369,219.40, 553,800.30 and 144,536.20 is: 216,793.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,219.40 : 553,800.30 = 144,536.20 : x
  2. Step 2: Convert to fraction form
    369,219.40/553,800.30 = 144,536.20/x
  3. Step 3: Cross multiply
    369,219.40x = 553,800.30 × 144,536.20
  4. Step 4: Simplify right side
    369,219.40x = 80,044,190,920.86
  5. Step 5: Solve for x
    x = 80,044,190,920.86/369,219.40
  6. Step 6: Final answer
    x = 216,793.03

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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.