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Finding the Fourth Proportional to 302,800.40, 454,200.60 and 282,971.60

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Solution

The fourth proportional to 302,800.40, 454,200.60 and 282,971.60 is: 424,457.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,800.40 : 454,200.60 = 282,971.60 : x
  2. Step 2: Convert to fraction form
    302,800.40/454,200.60 = 282,971.60/x
  3. Step 3: Cross multiply
    302,800.40x = 454,200.60 × 282,971.60
  4. Step 4: Simplify right side
    302,800.40x = 128,525,870,502.96
  5. Step 5: Solve for x
    x = 128,525,870,502.96/302,800.40
  6. Step 6: Final answer
    x = 424,457.40

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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.