Home / 345,985.01-477,377.96-210,015.57

Finding the Fourth Proportional to 345,985.01, 477,377.96 and 210,015.57

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Solution

The fourth proportional to 345,985.01, 477,377.96 and 210,015.57 is: 289,772.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,985.01 : 477,377.96 = 210,015.57 : x
  2. Step 2: Convert to fraction form
    345,985.01/477,377.96 = 210,015.57/x
  3. Step 3: Cross multiply
    345,985.01x = 477,377.96 × 210,015.57
  4. Step 4: Simplify right side
    345,985.01x = 100,256,803,324.76
  5. Step 5: Solve for x
    x = 100,256,803,324.76/345,985.01
  6. Step 6: Final answer
    x = 289,772.11

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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.