Home / 280,929.72-387,669.42-160,099.32

Finding the Fourth Proportional to 280,929.72, 387,669.42 and 160,099.32

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Solution

The fourth proportional to 280,929.72, 387,669.42 and 160,099.32 is: 220,929.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,929.72 : 387,669.42 = 160,099.32 : x
  2. Step 2: Convert to fraction form
    280,929.72/387,669.42 = 160,099.32/x
  3. Step 3: Cross multiply
    280,929.72x = 387,669.42 × 160,099.32
  4. Step 4: Simplify right side
    280,929.72x = 62,065,610,526.79
  5. Step 5: Solve for x
    x = 62,065,610,526.79/280,929.72
  6. Step 6: Final answer
    x = 220,929.31

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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.