Home / 369,179.10-553,400.64-156,000.78

Finding the Fourth Proportional to 369,179.10, 553,400.64 and 156,000.78

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Solution

The fourth proportional to 369,179.10, 553,400.64 and 156,000.78 is: 233,845.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,179.10 : 553,400.64 = 156,000.78 : x
  2. Step 2: Convert to fraction form
    369,179.10/553,400.64 = 156,000.78/x
  3. Step 3: Cross multiply
    369,179.10x = 553,400.64 × 156,000.78
  4. Step 4: Simplify right side
    369,179.10x = 86,330,931,492.50
  5. Step 5: Solve for x
    x = 86,330,931,492.50/369,179.10
  6. Step 6: Final answer
    x = 233,845.66

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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.