Home / 287,895.14-431,657.90-119,531.67

Finding the Fourth Proportional to 287,895.14, 431,657.90 and 119,531.67

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Solution

The fourth proportional to 287,895.14, 431,657.90 and 119,531.67 is: 179,220.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,895.14 : 431,657.90 = 119,531.67 : x
  2. Step 2: Convert to fraction form
    287,895.14/431,657.90 = 119,531.67/x
  3. Step 3: Cross multiply
    287,895.14x = 431,657.90 × 119,531.67
  4. Step 4: Simplify right side
    287,895.14x = 51,596,789,058.03
  5. Step 5: Solve for x
    x = 51,596,789,058.03/287,895.14
  6. Step 6: Final answer
    x = 179,220.77

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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.