Home / 287,696.10-397,025.85-160,357.98

Finding the Fourth Proportional to 287,696.10, 397,025.85 and 160,357.98

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Solution

The fourth proportional to 287,696.10, 397,025.85 and 160,357.98 is: 221,296.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,696.10 : 397,025.85 = 160,357.98 : x
  2. Step 2: Convert to fraction form
    287,696.10/397,025.85 = 160,357.98/x
  3. Step 3: Cross multiply
    287,696.10x = 397,025.85 × 160,357.98
  4. Step 4: Simplify right side
    287,696.10x = 63,666,263,313.78
  5. Step 5: Solve for x
    x = 63,666,263,313.78/287,696.10
  6. Step 6: Final answer
    x = 221,296.93

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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.