Home / 309,133.32-426,608.42-180,068.50

Finding the Fourth Proportional to 309,133.32, 426,608.42 and 180,068.50

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Solution

The fourth proportional to 309,133.32, 426,608.42 and 180,068.50 is: 248,497.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,133.32 : 426,608.42 = 180,068.50 : x
  2. Step 2: Convert to fraction form
    309,133.32/426,608.42 = 180,068.50/x
  3. Step 3: Cross multiply
    309,133.32x = 426,608.42 × 180,068.50
  4. Step 4: Simplify right side
    309,133.32x = 76,818,738,276.77
  5. Step 5: Solve for x
    x = 76,818,738,276.77/309,133.32
  6. Step 6: Final answer
    x = 248,497.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.