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Finding the Fourth Proportional to 392,300.26, 540,343.12 and 301,482.34

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Solution

The fourth proportional to 392,300.26, 540,343.12 and 301,482.34 is: 415,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,300.26 : 540,343.12 = 301,482.34 : x
  2. Step 2: Convert to fraction form
    392,300.26/540,343.12 = 301,482.34/x
  3. Step 3: Cross multiply
    392,300.26x = 540,343.12 × 301,482.34
  4. Step 4: Simplify right side
    392,300.26x = 162,903,908,220.50
  5. Step 5: Solve for x
    x = 162,903,908,220.50/392,300.26
  6. Step 6: Final answer
    x = 415,253.12

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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.