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Finding the Fourth Proportional to 286,323.62, 429,484.92 and 73,091.50

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Solution

The fourth proportional to 286,323.62, 429,484.92 and 73,091.50 is: 109,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,323.62 : 429,484.92 = 73,091.50 : x
  2. Step 2: Convert to fraction form
    286,323.62/429,484.92 = 73,091.50/x
  3. Step 3: Cross multiply
    286,323.62x = 429,484.92 × 73,091.50
  4. Step 4: Simplify right side
    286,323.62x = 31,391,697,030.18
  5. Step 5: Solve for x
    x = 31,391,697,030.18/286,323.62
  6. Step 6: Final answer
    x = 109,637.12

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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.