Home / 278,807.07-384,755.36-151,483.71

Finding the Fourth Proportional to 278,807.07, 384,755.36 and 151,483.71

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Solution

The fourth proportional to 278,807.07, 384,755.36 and 151,483.71 is: 209,048.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,807.07 : 384,755.36 = 151,483.71 : x
  2. Step 2: Convert to fraction form
    278,807.07/384,755.36 = 151,483.71/x
  3. Step 3: Cross multiply
    278,807.07x = 384,755.36 × 151,483.71
  4. Step 4: Simplify right side
    278,807.07x = 58,284,168,617.77
  5. Step 5: Solve for x
    x = 58,284,168,617.77/278,807.07
  6. Step 6: Final answer
    x = 209,048.39

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1.5x scale

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.