Home / 278,368.38-384,150.87-151,045.02

Finding the Fourth Proportional to 278,368.38, 384,150.87 and 151,045.02

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Solution

The fourth proportional to 278,368.38, 384,150.87 and 151,045.02 is: 208,443.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,368.38 : 384,150.87 = 151,045.02 : x
  2. Step 2: Convert to fraction form
    278,368.38/384,150.87 = 151,045.02/x
  3. Step 3: Cross multiply
    278,368.38x = 384,150.87 × 151,045.02
  4. Step 4: Simplify right side
    278,368.38x = 58,024,075,842.17
  5. Step 5: Solve for x
    x = 58,024,075,842.17/278,368.38
  6. Step 6: Final answer
    x = 208,443.49

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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.