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Finding the Fourth Proportional to 286,005.30, 429,007.95 and 273,870.90

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Solution

The fourth proportional to 286,005.30, 429,007.95 and 273,870.90 is: 410,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,005.30 : 429,007.95 = 273,870.90 : x
  2. Step 2: Convert to fraction form
    286,005.30/429,007.95 = 273,870.90/x
  3. Step 3: Cross multiply
    286,005.30x = 429,007.95 × 273,870.90
  4. Step 4: Simplify right side
    286,005.30x = 117,492,793,373.66
  5. Step 5: Solve for x
    x = 117,492,793,373.66/286,005.30
  6. Step 6: Final answer
    x = 410,806.35

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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.