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Finding the Fourth Proportional to 314,368.61, 433,828.69 and 171,129.69

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Solution

The fourth proportional to 314,368.61, 433,828.69 and 171,129.69 is: 236,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,368.61 : 433,828.69 = 171,129.69 : x
  2. Step 2: Convert to fraction form
    314,368.61/433,828.69 = 171,129.69/x
  3. Step 3: Cross multiply
    314,368.61x = 433,828.69 × 171,129.69
  4. Step 4: Simplify right side
    314,368.61x = 74,240,968,804.98
  5. Step 5: Solve for x
    x = 74,240,968,804.98/314,368.61
  6. Step 6: Final answer
    x = 236,158.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.