Home / 278,477.48-384,299.32-151,153.10

Finding the Fourth Proportional to 278,477.48, 384,299.32 and 151,153.10

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Solution

The fourth proportional to 278,477.48, 384,299.32 and 151,153.10 is: 208,591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,477.48 : 384,299.32 = 151,153.10 : x
  2. Step 2: Convert to fraction form
    278,477.48/384,299.32 = 151,153.10/x
  3. Step 3: Cross multiply
    278,477.48x = 384,299.32 × 151,153.10
  4. Step 4: Simplify right side
    278,477.48x = 58,088,033,545.89
  5. Step 5: Solve for x
    x = 58,088,033,545.89/278,477.48
  6. Step 6: Final answer
    x = 208,591.49

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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.