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Finding the Fourth Proportional to 245,430.10, 368,145.15 and 201,106.90

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Solution

The fourth proportional to 245,430.10, 368,145.15 and 201,106.90 is: 301,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,430.10 : 368,145.15 = 201,106.90 : x
  2. Step 2: Convert to fraction form
    245,430.10/368,145.15 = 201,106.90/x
  3. Step 3: Cross multiply
    245,430.10x = 368,145.15 × 201,106.90
  4. Step 4: Simplify right side
    245,430.10x = 74,036,529,866.54
  5. Step 5: Solve for x
    x = 74,036,529,866.54/245,430.10
  6. Step 6: Final answer
    x = 301,660.35

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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.