Home / 210,509.04-290,499.06-115,013.70

Finding the Fourth Proportional to 210,509.04, 290,499.06 and 115,013.70

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Solution

The fourth proportional to 210,509.04, 290,499.06 and 115,013.70 is: 158,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,509.04 : 290,499.06 = 115,013.70 : x
  2. Step 2: Convert to fraction form
    210,509.04/290,499.06 = 115,013.70/x
  3. Step 3: Cross multiply
    210,509.04x = 290,499.06 × 115,013.70
  4. Step 4: Simplify right side
    210,509.04x = 33,411,371,737.12
  5. Step 5: Solve for x
    x = 33,411,371,737.12/210,509.04
  6. Step 6: Final answer
    x = 158,717.04

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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.