Home / 345,988.22-477,382.26-210,018.80

Finding the Fourth Proportional to 345,988.22, 477,382.26 and 210,018.80

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Solution

The fourth proportional to 345,988.22, 477,382.26 and 210,018.80 is: 289,776.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,988.22 : 477,382.26 = 210,018.80 : x
  2. Step 2: Convert to fraction form
    345,988.22/477,382.26 = 210,018.80/x
  3. Step 3: Cross multiply
    345,988.22x = 477,382.26 × 210,018.80
  4. Step 4: Simplify right side
    345,988.22x = 100,259,249,386.49
  5. Step 5: Solve for x
    x = 100,259,249,386.49/345,988.22
  6. Step 6: Final answer
    x = 289,776.48

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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.