Home / 210,209.30-290,095.24-119,578.40

Finding the Fourth Proportional to 210,209.30, 290,095.24 and 119,578.40

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Solution

The fourth proportional to 210,209.30, 290,095.24 and 119,578.40 is: 165,021.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,209.30 : 290,095.24 = 119,578.40 : x
  2. Step 2: Convert to fraction form
    210,209.30/290,095.24 = 119,578.40/x
  3. Step 3: Cross multiply
    210,209.30x = 290,095.24 × 119,578.40
  4. Step 4: Simplify right side
    210,209.30x = 34,689,124,646.82
  5. Step 5: Solve for x
    x = 34,689,124,646.82/210,209.30
  6. Step 6: Final answer
    x = 165,021.84

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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.