Home / 210,545.68-290,556.84-115,056.40

Finding the Fourth Proportional to 210,545.68, 290,556.84 and 115,056.40

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Solution

The fourth proportional to 210,545.68, 290,556.84 and 115,056.40 is: 158,779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,545.68 : 290,556.84 = 115,056.40 : x
  2. Step 2: Convert to fraction form
    210,545.68/290,556.84 = 115,056.40/x
  3. Step 3: Cross multiply
    210,545.68x = 290,556.84 × 115,056.40
  4. Step 4: Simplify right side
    210,545.68x = 33,430,424,005.78
  5. Step 5: Solve for x
    x = 33,430,424,005.78/210,545.68
  6. Step 6: Final answer
    x = 158,779.91

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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.