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Finding the Fourth Proportional to 245,426.40, 368,485.20 and 152,114.40

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Solution

The fourth proportional to 245,426.40, 368,485.20 and 152,114.40 is: 228,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,426.40 : 368,485.20 = 152,114.40 : x
  2. Step 2: Convert to fraction form
    245,426.40/368,485.20 = 152,114.40/x
  3. Step 3: Cross multiply
    245,426.40x = 368,485.20 × 152,114.40
  4. Step 4: Simplify right side
    245,426.40x = 56,051,905,106.88
  5. Step 5: Solve for x
    x = 56,051,905,106.88/245,426.40
  6. Step 6: Final answer
    x = 228,385.80

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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.