Home / 208,267.20-312,368.40-58,492.80

Finding the Fourth Proportional to 208,267.20, 312,368.40 and 58,492.80

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Solution

The fourth proportional to 208,267.20, 312,368.40 and 58,492.80 is: 87,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,267.20 : 312,368.40 = 58,492.80 : x
  2. Step 2: Convert to fraction form
    208,267.20/312,368.40 = 58,492.80/x
  3. Step 3: Cross multiply
    208,267.20x = 312,368.40 × 58,492.80
  4. Step 4: Simplify right side
    208,267.20x = 18,271,302,347.52
  5. Step 5: Solve for x
    x = 18,271,302,347.52/208,267.20
  6. Step 6: Final answer
    x = 87,730.10

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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.