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Finding the Fourth Proportional to 191,004.80, 286,564.80 and 102,300.80

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Solution

The fourth proportional to 191,004.80, 286,564.80 and 102,300.80 is: 153,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,004.80 : 286,564.80 = 102,300.80 : x
  2. Step 2: Convert to fraction form
    191,004.80/286,564.80 = 102,300.80/x
  3. Step 3: Cross multiply
    191,004.80x = 286,564.80 × 102,300.80
  4. Step 4: Simplify right side
    191,004.80x = 29,315,808,291.84
  5. Step 5: Solve for x
    x = 29,315,808,291.84/191,004.80
  6. Step 6: Final answer
    x = 153,482.05

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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.