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Finding the Fourth Proportional to 296,875.70, 445,313.55 and 286,378.10

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Solution

The fourth proportional to 296,875.70, 445,313.55 and 286,378.10 is: 429,567.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,875.70 : 445,313.55 = 286,378.10 : x
  2. Step 2: Convert to fraction form
    296,875.70/445,313.55 = 286,378.10/x
  3. Step 3: Cross multiply
    296,875.70x = 445,313.55 × 286,378.10
  4. Step 4: Simplify right side
    296,875.70x = 127,528,048,353.26
  5. Step 5: Solve for x
    x = 127,528,048,353.26/296,875.70
  6. Step 6: Final answer
    x = 429,567.15

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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.