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Finding the Fourth Proportional to 248,312.86, 342,775.72 and 210,269.32

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Solution

The fourth proportional to 248,312.86, 342,775.72 and 210,269.32 is: 290,259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,312.86 : 342,775.72 = 210,269.32 : x
  2. Step 2: Convert to fraction form
    248,312.86/342,775.72 = 210,269.32/x
  3. Step 3: Cross multiply
    248,312.86x = 342,775.72 × 210,269.32
  4. Step 4: Simplify right side
    248,312.86x = 72,075,216,962.81
  5. Step 5: Solve for x
    x = 72,075,216,962.81/248,312.86
  6. Step 6: Final answer
    x = 290,259.71

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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.