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Finding the Fourth Proportional to 407,116.20, 610,674.30 and 302,140.20

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Solution

The fourth proportional to 407,116.20, 610,674.30 and 302,140.20 is: 453,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,116.20 : 610,674.30 = 302,140.20 : x
  2. Step 2: Convert to fraction form
    407,116.20/610,674.30 = 302,140.20/x
  3. Step 3: Cross multiply
    407,116.20x = 610,674.30 × 302,140.20
  4. Step 4: Simplify right side
    407,116.20x = 184,509,255,136.86
  5. Step 5: Solve for x
    x = 184,509,255,136.86/407,116.20
  6. Step 6: Final answer
    x = 453,210.30

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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.