Home / 276,916.12-382,138.95-156,054.98

Finding the Fourth Proportional to 276,916.12, 382,138.95 and 156,054.98

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Solution

The fourth proportional to 276,916.12, 382,138.95 and 156,054.98 is: 215,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,916.12 : 382,138.95 = 156,054.98 : x
  2. Step 2: Convert to fraction form
    276,916.12/382,138.95 = 156,054.98/x
  3. Step 3: Cross multiply
    276,916.12x = 382,138.95 × 156,054.98
  4. Step 4: Simplify right side
    276,916.12x = 59,634,686,445.81
  5. Step 5: Solve for x
    x = 59,634,686,445.81/276,916.12
  6. Step 6: Final answer
    x = 215,352.89

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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.