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Finding the Fourth Proportional to 309,029.60, 463,501.20 and 98,688.80

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Solution

The fourth proportional to 309,029.60, 463,501.20 and 98,688.80 is: 148,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,029.60 : 463,501.20 = 98,688.80 : x
  2. Step 2: Convert to fraction form
    309,029.60/463,501.20 = 98,688.80/x
  3. Step 3: Cross multiply
    309,029.60x = 463,501.20 × 98,688.80
  4. Step 4: Simplify right side
    309,029.60x = 45,742,377,226.56
  5. Step 5: Solve for x
    x = 45,742,377,226.56/309,029.60
  6. Step 6: Final answer
    x = 148,019.40

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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.