Home / 345,905.07-477,276.08-210,010.47

Finding the Fourth Proportional to 345,905.07, 477,276.08 and 210,010.47

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Solution

The fourth proportional to 345,905.07, 477,276.08 and 210,010.47 is: 289,770.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,905.07 : 477,276.08 = 210,010.47 : x
  2. Step 2: Convert to fraction form
    345,905.07/477,276.08 = 210,010.47/x
  3. Step 3: Cross multiply
    345,905.07x = 477,276.08 × 210,010.47
  4. Step 4: Simplify right side
    345,905.07x = 100,232,973,880.56
  5. Step 5: Solve for x
    x = 100,232,973,880.56/345,905.07
  6. Step 6: Final answer
    x = 289,770.18

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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.