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Finding the Fourth Proportional to 350,129.40, 525,194.10 and 312,075.60

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Solution

The fourth proportional to 350,129.40, 525,194.10 and 312,075.60 is: 468,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,129.40 : 525,194.10 = 312,075.60 : x
  2. Step 2: Convert to fraction form
    350,129.40/525,194.10 = 312,075.60/x
  3. Step 3: Cross multiply
    350,129.40x = 525,194.10 × 312,075.60
  4. Step 4: Simplify right side
    350,129.40x = 163,900,263,873.96
  5. Step 5: Solve for x
    x = 163,900,263,873.96/350,129.40
  6. Step 6: Final answer
    x = 468,113.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.