Home / 278,567.10-384,423.66-151,242.66

Finding the Fourth Proportional to 278,567.10, 384,423.66 and 151,242.66

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Solution

The fourth proportional to 278,567.10, 384,423.66 and 151,242.66 is: 208,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,567.10 : 384,423.66 = 151,242.66 : x
  2. Step 2: Convert to fraction form
    278,567.10/384,423.66 = 151,242.66/x
  3. Step 3: Cross multiply
    278,567.10x = 384,423.66 × 151,242.66
  4. Step 4: Simplify right side
    278,567.10x = 58,141,256,905.34
  5. Step 5: Solve for x
    x = 58,141,256,905.34/278,567.10
  6. Step 6: Final answer
    x = 208,715.45

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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.